Double Time Travel? Also Bring a God?

Why did I travel to a dead otaku who had just completed traveling to another world? What? He even brought a goddess with him! Do you want me to chop up the devil? Didn't I just fall asleep in math class? Huh? Is there a girl here willing to talk to me? But they all look like very strong professions, why are you so weird? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.